Thomas hipwell



(No Model.)

T. HIPWELL.

ARGAND BURNER PoR LAMPS.

No. 256,216f Patented Apr. 11 1882.

. y UNITED STATES PATENT OFFICE.

THOMAS HIPWELL, OF NEV BRUNSWICK, NEW' JERSEY, ASSIGNOR TO THE MANHATTAN BRASS COMPANY, OF NEW YORK, N. Y.

ARGAND BURNER FOR LAMPS.

SPECIFICATION forming part of Letters Patent No. 256,216, dated April 11, 1882. Application tiled January 3, 1882. (No model.)

To all 'zo/Loin it may concern:

Be it known that I, THOMAS HIPWELL, of New Brunswick, in the county of Middlesex and State of New Jersey, have invented an Improvement in Argand Burners for-Lamps, of which the following is a specification.

Letters PatentNo. 250,918 were duly granted December 13, 1881, for myinventiou of an improvement in Argand burnersfor lamps. I have reproduced the drawing of that patent with my present application and added thereto the features of my present improvement. In the said patent the air-tube is flattened at thelower ends, so that the metal comes close together. The wick-raisers act at opposite sides of this part ot' the air-tube to raise or lower the wicks. In addition to the friction ot' the wick within the wick-tube, there is the friction of the wick against the metal where the wick-raisersv act upon the wicks. I find that the friction upon the wicks at the wickraisers can be dispensed with by employing certain expedients, by which at the saine time the wicksare not so much confined, and which allow greater freedom for the capillary action in raising the oil. These results are secured by removing the metal of the air-tube adjacent to the wick-raisers, so that the folded parts of the wick come in Contact, and the wick-raisers are at opposite sides of the double thickness, so as to act directly upon the wick and raise or lower the same. The parts of the wick coming together prevents any risk of one part slipping or moving more than the other part. Hence the wick is raised or lowered with uniformity.

In the drawings, Figure l is a vertical section of the burner complete. Fig. 2 is a sectional plan of the same at the line x be. Fig. 3 is a perspective view ot' the air-tube detached. Fig. 4 is a vertical section ofthe burner at right angles to Fig. 1, and Fig. 5 is an'inverted plan of the air-tube.

In those lamp-burners where the folded wick has been acted upon by the wick-raisers there is a risk that the fold of the wick may not open properly after it passes the wickraisers, and there is difficulty in introducing the wick so as to prevent both thicknesses passing on one side of the air-tube above 5o the wick-raisers. This is prevented by my present improvement, because the wick, as entered, passes at each side of the lower part,

3, of the air-tube, and the edges of the wick are guided in passing up around the air-tube.

A description of the construction and operation ot' the lamp-burner is unnecessary, as

it is given fully in the aforesaid patent.

I make an opening at r in the lower part of the wick-tube, where the metal thereof is flat- 6o tened and pressed together, at 3,said opening i' being at the place Where the wick-raising wheels i are located, so that they act upon the wick in its folded condition as it passes through between such wick-raisers. I remark that these wick-raisers are geared together atf, and operated by a button, 7L, and that the metal which is left of the plates 3 forms a rib, s, which opens the folded Wick and insures its proper passage past the wick- 7o raisers and into the concentric Argand wiektnbes.

The wick-raisers, acting at opposite sides of the folded wick, raise or lower the same bodily without pressing the wick against any metallic surface or support, as in said patent, and this advantage is added to those possessed by the burner, as set forth in aforesaid patent.

In cases where the lower end of the air-tube is closed and tapered the rib s might be asep- 8o arate piece, extending from the lower end of such air-tube across below the wick-raisers, to insure the proper separation of the folded wick as it passes up to the concentric Argand tubes.

I claim as my 'inventionl. In an Argand lamp, two wick-raisers, between which 'the wick passes in a folded coudition, in combination with the air-tube of an Argand lamp, the metal of which ris pressed 9o together at the lower part and provided with an opening in the metal adjacent to the wickraisers, so that the folds of the Wick'wll be in contact at the wick-raisers, substantially as set forth.

2. In an Argand lamp, the combination7 with the Wick-raisers that act upon each side of the wick in a folded condition, of an air-tube above the Wick-tube, the lower end of which is closed, and a rib or piece of metal extendn ing from the air-tube across beneath the wickraisers, for the purposes set forth. ro

Signed by me this 27th day of December, A.

THOMAS HIPWELL. Witnesses:

THOMAS MCS. HADLEY, F. E. MCKENNEY. 

